公开(公告)号：US20210198815A1

公开(公告)日：2021-07-01

申请号：US16939684

申请日：2020-07-27

申请人： SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

发明人： Xiaofei Wang ,  Mingyu Zhu ,  Yulei Li ,  Fuzeng Ren ,  Yusheng Zhao

IPC分类号： D01F8/18 ,  D01F9/08 ,  D01F1/10 ,  D01D5/00 ,  C04B35/571 ,  C04B35/56

摘要： Provided are a SiC/ZrC composite fiber, a preparation method and use thereof. The SiC/ZrC composite fiber has a diameter of 10 to 70 μm. The method includes mixing liquid polycarbosilane with a zirconium-containing polymer to obtain a hybrid spinning solution, and then performing electrospinning to obtain a SiC/ZrC composite fiber precursor, crosslinking and thermally treating the SiC/ZrC composite fiber precursor in a protective atmosphere to obtain the SiC/ZrC composite fiber. The SiC/ZrC composite fiber is continuous and uniform, has an adjustable diameter, and thus has outstanding tensile strength and breaking strength and excellent high-temperature resistance. Without use of any organic solvent or spinning agent, the method achieves short process flow and high yield, indicating wide application prospects.